Chaeles a



Nofiodem 2 Sheets-Sheet 1. O. A. GURRAN.

FRUIT DRIER.

Fig Patented June @1883.

772771611161; 7 a 4 and N. PETERS. Phmcrukhoyflpher. Washington. a. c,

(No Model.) 2 Sheets-Sheet 2.

G. A. GURRAN.

I FRUIT DRIER. Y 7 No. 278.890,. v Patented June 5,1883.

Edge? I I My WWW 1 UNITED STATES PATENT FFICE.

CHARLES A. CURRAN, or ALBANY, OREGON,

FRUIT-DRIER.

SPECIFICATIGN forming part of Letters Patent No. 27$,fi90, dated June 5, 1883.

Application filed February 8, 1883. (No model.)

To all whom it WWI/y concern: 3'

Be it known that I, CHARLES A. Gunner, of Albany, in the county of Linn and State of Oregon, have invented certain new and useful Improvements in Fruit-Driers; and I do here 7 by declare that the followingis a full, clear,

and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification, in which Figure 1 is a vertical section taken horizon-' Fig. 4 is a perspective view of one of my improved trays for supporting the fruit-pans.

This invention relates to novel improvements on fruit-driers, which will be fully understood from the following description, when taken in connection with the annexed drawings.

A A designate the outer walls, which form the base of the drier and inclose two furnaces, B B, which are surrounded bya hot-air space, and which are prismatic in cross-section, their side walls forming angles and inclined planes, p.19, as shown in Fig. 2, for the purpose of allowing the use of inclined shielding-walls, hereinafter described.

The furnaces B B are provided with end doors, and, if desirethgrates may be arranged in them. From the inner ends of the furnaces rise pipes G G, to which are attached a series of horizontal coils, C, of pipes, as shown in the drawings, which coils, together with the furnace-walls, afford a very large amount of heat-radiating surface in a comparatively small space.

By constructing the coils of pipes as shown and arranging them horizontally, the heated products of combustion are compelled to take a very tortuous course through the drying chamber P, which is inclosed by walls P, having end doors, I, all of which are above the walls A. One of the trays I have represented in Fig. at, and itwill be hereinafter described.

air currents from impinging against the furnace walls B B.

Above the level of the top plates of the furnaces I make draft-openings b, for tempering or regulating the heat of the drier, and these openings, as well as the openings a a, are provided with sliding dampers for regulating the quantity of air admitted intothc drier. I am by these means able to-thoroughly and uniformly ventilate the drier and to subject the fruit therein to currents of dry air, which will rapidly carry off the moisture.

The trays which I use in the upper part of my drier I construct as follows:

G designates a rectangular frame, across the middle of the length of which is a brace-bar, G. At the corners of the frame G, inside thereof, are angular staples e, to which the ends of angular braces H H are connected by eyes. The angles of these braces are connected, by rings to loops 9, which are rigidlysecured to buckle-plates J J, through which a screw,

K,is tapped, having short thumb-pins pro-- jecting from it.

It will be seen that by a single adjustment A of the screw K the frame G can be tightened. These trays, which are designed for sup porting the fruitpans, may be sustained by means of grooves in the side walls of the 021s ing 1, or in any other suitable manner.

Having described my invention, what I claim as new, and desire to secure by Letters Patent,

1. In a drying-furnace, the combination of the external rectangular furnace-walls, A, the

cold-air-inlet passages a, near the bottom of these walls, provided with sliding dampers,

furnaces B, having inclined side walls and outlets G, and the inclined shields E, arranged in the angular spaces between the furnaces and In testimony that I claim the foregoing as IO my own I affix my signature in presence of two witnesses.

the outer walls, A, :11] constructed and adapted l to operate substantially in the manner and for the purposes described;

2. A fruit-tray frame consisting ofthe l'ranie i (j, braced by rod G, in combination with cor nerstaplcs c, braces H, and a turn-buckle con necting these braces, all constructed and adapted to operate substantially in the manner and for the purposes described.

CHARLES A. CURRAN.

'itncsses:

J. A. DAVIS, J. K. VEATHERFORD. 

